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Android Build a Simple Android App (2014) Improving Our Code Dynamically Changing the Background Color

bing jin
bing jin
598 Points
Posted by bing jin
bing jin
598 Points

why used "private" key word in "private FactBook mFactBook = new FactBook();"

what will happen if I do not use this word?

1 Answer

Or Kramer
Or Kramer
3,072 Points
Or Kramer
Or Kramer
3,072 Points

A public variable is accessible everywhere in the code - a private variable is only accessible within the class itself.

It's a generally accepted convention to use private unless you need to expose a field or method to other classes.

In addition, Private fields promote the Encapsulation concept in programming : https://en.wikipedia.org/wiki/Encapsulation_(computer_programming)

Goodluck :)